const { Outlet, User, Resignation } = require('../models');

// Get all outlets for logged-in dealer
exports.getOutlets = async (req, res) => {
  try {
    const where = {};
    if (req.user.role === 'Dealer') {
      where.dealerId = req.user.id;
    }

    const outlets = await Outlet.findAll({
      where,
      include: [
        {
          model: User,
          as: 'dealer',
          attributes: ['name', 'email']
        },
        {
          model: Resignation,
          as: 'resignations',
          required: false,
          where: {
            status: { [Op.notIn]: ['Completed', 'Rejected'] }
          }
        }
      ],
      order: [['createdAt', 'DESC']]
    });

    res.json({
      success: true,
      outlets
    });
  } catch (error) {
    console.error('Get outlets error:', error);
    res.status(500).json({
      success: false,
      message: 'Error fetching outlets'
    });
  }
};

// Get specific outlet details
exports.getOutletById = async (req, res) => {
  try {
    const { id } = req.params;

    const outlet = await Outlet.findByPk(id, {
      include: [{
        model: User,
        as: 'dealer',
        attributes: ['name', 'email', 'phone']
      }]
    });

    if (!outlet) {
      return res.status(404).json({
        success: false,
        message: 'Outlet not found'
      });
    }

    // Check if dealer can access this outlet
    if (req.user.role === 'Dealer' && outlet.dealerId !== req.user.id) {
      return res.status(403).json({
        success: false,
        message: 'Access denied'
      });
    }

    res.json({
      success: true,
      outlet
    });
  } catch (error) {
    console.error('Get outlet error:', error);
    res.status(500).json({
      success: false,
      message: 'Error fetching outlet'
    });
  }
};

// Create new outlet (admin only)
exports.createOutlet = async (req, res) => {
  try {
    const {
      dealerId,
      code,
      name,
      type,
      address,
      city,
      state,
      pincode,
      establishedDate,
      latitude,
      longitude
    } = req.body;

    // Validate required fields
    if (!dealerId || !code || !name || !type || !address || !city || !state) {
      return res.status(400).json({
        success: false,
        message: 'Missing required fields'
      });
    }

    // Check if code already exists
    const existing = await Outlet.findOne({ where: { code } });
    if (existing) {
      return res.status(400).json({
        success: false,
        message: 'Outlet code already exists'
      });
    }

    const outlet = await Outlet.create({
      dealerId,
      code,
      name,
      type,
      address,
      city,
      state,
      pincode,
      establishedDate,
      latitude,
      longitude
    });

    res.status(201).json({
      success: true,
      message: 'Outlet created successfully',
      outletId: outlet.id
    });
  } catch (error) {
    console.error('Create outlet error:', error);
    res.status(500).json({
      success: false,
      message: 'Error creating outlet'
    });
  }
};

// Update outlet
exports.updateOutlet = async (req, res) => {
  try {
    const { id } = req.params;
    const { name, address, city, state, pincode, status, latitude, longitude } = req.body;

    const outlet = await Outlet.findByPk(id);
    if (!outlet) {
      return res.status(404).json({
        success: false,
        message: 'Outlet not found'
      });
    }

    await outlet.update({
      name: name || outlet.name,
      address: address || outlet.address,
      city: city || outlet.city,
      state: state || outlet.state,
      pincode: pincode || outlet.pincode,
      status: status || outlet.status,
      latitude: latitude || outlet.latitude,
      longitude: longitude || outlet.longitude,
      updatedAt: new Date()
    });

    res.json({
      success: true,
      message: 'Outlet updated successfully'
    });
  } catch (error) {
    console.error('Update outlet error:', error);
    res.status(500).json({
      success: false,
      message: 'Error updating outlet'
    });
  }
};